From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: PROMPT_SP bug with local in precmd
Date: Fri, 26 Nov 2010 09:38:10 -0800 [thread overview]
Message-ID: <101126093810.ZM25915@torch.brasslantern.com> (raw)
In-Reply-To: <20101126115148.GT1254@prunille.vinc17.org>
On Nov 26, 12:51pm, Vincent Lefevre wrote:
}
} ypig% precmd() { local v=bar }
} ypig% echo -n foo; false
} foozsh: exit 1
It's not "local" that triggers this, it's any command:
torch% precmd() { : }
torch% echo -n foo; false
foozsh: exit 1
torch% precmd() { echo -n Hi }
Hi%
torch% echo -n foo; false
foozsh: exit 1
Hi%
torch% precmd() { /bin/echo -n Hi }
Hi%
torch% echo -n foo; false
foozsh: exit 1
Hi%
zsh: exit 1
torch%
This makes me suspect it's not so much a bug as a race condition -- when
there is a command in precmd, the order in which the exit values from
children (even fake children) are collected and reported is changed.
Note how "zsh: exit 1" is printed twice when the precmd is a forked
process instead of all builtins.
My conclusion from this is that "foozsh: exit 1" is what you really
ought to be seeing all the time, and "zsh: exit 1" on its own line is a
side-effect of a stdio buffer never having been flushed.
next prev parent reply other threads:[~2010-11-26 17:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-26 11:51 Vincent Lefevre
2010-11-26 17:38 ` Bart Schaefer [this message]
2010-11-26 22:53 ` Peter Stephenson
2010-11-27 2:03 ` Wayne Davison
2010-11-27 2:27 ` Bart Schaefer
2010-11-27 17:15 ` Peter Stephenson
2010-11-28 10:35 ` Vincent Lefevre
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